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20350083 = 3131929947
BaseRepresentation
bin100110110100…
…0010010000011
31102021220001210
41031220102003
520202200313
62004101203
7334654455
oct115502203
942256053
1020350083
111053a356
126994803
1342a6890
1429ba2d5
151bbe9c3
hex1368483

20350083 has 32 divisors (see below), whose sum is σ = 31852800. Its totient is φ = 11442816.

The previous prime is 20350081. The next prime is 20350087. The reversal of 20350083 is 38005302.

It is not a de Polignac number, because 20350083 - 21 = 20350081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20350081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21016 + ... + 21962.

It is an arithmetic number, because the mean of its divisors is an integer number (995400).

Almost surely, 220350083 is an apocalyptic number.

20350083 is a deficient number, since it is larger than the sum of its proper divisors (11502717).

20350083 is a wasteful number, since it uses less digits than its factorization.

20350083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20350083 is about 4511.1066269819. The cubic root of 20350083 is about 273.0163953175.

Adding to 20350083 its reverse (38005302), we get a palindrome (58355385).

The spelling of 20350083 in words is "twenty million, three hundred fifty thousand, eighty-three".

Divisors: 1 3 13 19 29 39 57 87 247 377 551 741 947 1131 1653 2841 7163 12311 17993 21489 27463 36933 53979 82389 233909 357019 521797 701727 1071057 1565391 6783361 20350083